1287591425

素因数分解:

$5^2\times {\mathrm{173}}^1\times {\mathrm{463}}^1\times {\mathrm{643}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 1611813504

約数和(自身を除く): 324222079

約数列:

[1, 5, 25, 173, 463, 643, 865, 2315, 3215, 4325, 11575, 16075, 80099, 111239, 297709, 400495, 556195, 1488545, 2002475, 2780975, 7442725, 51503657, 257518285, 1287591425]

約数ペア:

[(1, 1287591425), (5, 257518285), (25, 51503657), (173, 7442725), (463, 2780975), (643, 2002475), (865, 1488545), (2315, 556195), (3215, 400495), (4325, 297709), (11575, 111239), (16075, 80099)]